Question

What is the 20th term of the arithmetic sequence 2, –4, –10, … ?

Answer 1

the formula for 'n'th term is a+(n-1)d.....a is first term,d is common difference...,does this help?

Answer 2

the difference is -6. use the formula and 'a' is the first number of the sequence which is 2. help?

Answer 3

this are my choices –130

–124

–118

–112

Answer 4

@hartnn @mathsloser56

Answer 5

do the math, and youll find it.

Answer 6

did u put values in formula?its easy calculation...

Answer 7

idk how to do it thats why i asked.. but thanks.

Answer 8

T(n) = a + (n-1)d .use this formula for T(20)

Answer 9

a is the first number, 2
n is the \[n^{th}\] you want, which is 20
d is the common difference between the numbers, which is -6